'tough ones' continued

Some years ago BBT put up a section on its website called 'Tough ones' dealing with controversial topics in SP books by some of his disciples. This section was later taken down for reasons unexplained but it can be seen in archive.org:
https://web.archive.org/web/20160203214811/http://bbt.info/information/t...

I thought that it shouldn't disappear but on the contrary, be expanded. So I'll post some answers to issues in this 'tough' category. Feel free to provide some feedback.